Why You Wake Up at 3AM (& How to Fall Back Asleep FAST)

Berg describes his old habit of constant grazing from dinner until bedtime, calling it the likely start of his health decline. He argues that even a small snack near bedtime forces the liver to process glucose and secrete insulin, setting up a reactive hypoglycemia hours later. Since insulin-resistant livers already overproduce sugar, the combination creates exaggerated swings. He notes that the first swing typically hits between midnight and 1 AM, and although it’s subtle, it can shave off the last hour of rest and accumulate into chronic sleep fragmentation. His behavioral advice includes clearing the house of all junk foods—'you only need to say no once at the grocery store'—to reduce temptation. This simple fasting rule is the first step in his six-part plan.

Berg separates the 3 AM awakening (liver/adrenaline) from the early-morning awakening (cortisol timing). He explains that the cortisol peak normally occurs around 8 AM, but if you don't get morning light, the peak shifts later, eventually pulling you out of sleep at 5 AM. The protocol mirrors the natural light-dark cycle: sunlight’s blue spectrum stimulates cortisol via the retina, anchoring the circadian clock. Conversely, artificial blue light from LEDs in the evening artificially raises cortisol and suppresses melatonin. He recommends gradually dimming lights and avoiding screen glare in the last three hours before sleep. This strategy, combined with the liver fixes, covers the full night.

Berg touches on the concept of sleep pressure without naming adenosine explicitly. He points out that sitting all day in front of a computer fails to create the physical tiredness necessary for deep, restorative sleep. He contrasts this with a day that includes a long walk, resistance training, or outdoor labor. He also warns against overuse of stimulants like coffee, which artificially counteract sleepiness and reduce the perceived pressure that helps you fall and stay asleep. While he doesn’t go deep into this topic, it’s one of his two immediate tips for damaged sleep pressure, alongside magnesium.

While Berg’s main focus is the liver, he includes this as a simple, fast-acting support. He mentions that he had been taking magnesium glycinate but recently added zinc and noticed even better sleep. The combination fits his insulin-resistance angle because both minerals play roles in glucose metabolism. He doesn’t elaborate on mechanism, but this is presented as a practical, low-risk add-on.

Berg explains that the brain can run on ketones as well as glucose, and that only a small percentage of the brain absolutely requires glucose—the rest can use ketones. Since the liver can produce that small glucose requirement endogenously (gluconeogenesis), a low-carb diet effectively stabilizes brain fuel throughout the night. This bypasses the entire insulin-resistance problem: no dietary glucose means no insulin spikes, no reactive hypoglycemia, no adrenaline surge. He calls it the 'best way' to not only feed the brain but to heal the liver itself. For those who struggle with sleep when first cutting carbs, he says the issue is the gap before full ketone adaptation; cutting carbs slowly over a week or two allows the body to adjust without the sleep disruption. He promises that once adapted, users will sleep through the night. He contrasts this with simply taking supplements, implying dietary change is the deeper solution.

Berg devotes significant time to his own long-standing, undiagnosed liver and gallbladder congestion. For years he felt a constant dull ache under his right ribs and right rhomboid muscle tension. He repeatedly saw a chiropractor for adjustments that never held because the root cause was a swollen liver and stagnant bile putting pressure on the phrenic nerve. He only figured it out decades later. Now, he teaches that the ratio of cholesterol to bile is often too high, causing sludge. Bitter foods stimulate bile production and flow, while exogenous bile salts like Tutka can physically thin the bile, open ducts, and reduce the backup pressure. He advises sleeping on the right side to avoid the liver compressing the heart when it is swollen. This protocol is especially relevant for people who have both sleep fragmentation and the described physical symptoms.

Berg adds this tip while sharing his own experience of restless sleep and the full sensation under his ribs. He notes that people with that problem are very restless and don't sleep well. Sleeping on the right side can make the night more comfortable until the liver heals.

Berg explains that the brain is nearly 100% dependent on liver-stored glycogen at night. A healthy liver can supply glucose steadily. But when the liver is fatty or insulin-resistant, it overproduces sugar but fails to maintain a stable level, causing repeated spikes and crashes. Each drop in blood sugar prompts the release of adrenaline to mobilize stored sugar, and that adrenaline wakes you up with a pounding heart. He had taught the adrenal narrative for years, yet when he himself suffered from 3 AM waking, adrenal supplements did nothing. He says it took him a very long time to finally sleep through the night—until he targeted the liver. In addition, he notes that a cortisol-driven early-morning wake-up (around 5 AM) is a separate circadian issue addressed by morning light exposure, not liver repair. This reclassification fundamentally changes the intervention from adrenal cocktails to metabolic and dietary liver support.